MR. THOMAS ALLEN LEACH M.D.
NPI 1114089141
Specialist in Princeton, NJ

NPI Status: Active since December 15, 2006

Contact Information

932 STATE RD
PRINCETON, NJ
ZIP 08540
Phone: (609) 921-7161
Fax: (609) 921-6263

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  • Individual
  • Male
  • Years of Experience 41
  • Specialist
  • Accepts Medicare Approved Payment
  • PECOS Enrolled

About THOMAS LEACH

This page provides the complete NPI Profile along with additional information for Thomas Leach, a provider established in Princeton, New Jersey with a medical specialization in Specialist and more than 41 years of experience. He graduated from Rutgers New Jersey Medical School in 1985. The healthcare provider is registered in the NPI registry with number 1114089141 assigned on December 2006. The practitioner's primary taxonomy code is 174400000X with license number MA049086 (NJ). The provider is registered as an individual and his NPI record was last updated 19 years ago.

NPI
1114089141
Provider Name
MR. THOMAS ALLEN LEACH M.D.
Gender
Male
Entity Type
Individual
Location Address
932 STATE RD PRINCETON, NJ 08540
Location Phone
(609) 921-7161
Location Fax
(609) 921-6263
Mailing Address
5 WEDGEWOOD CT BELLE MEAD, NJ 08502
Mailing Phone
(908) 281-9602
Medical School Name
RUTGERS NEW JERSEY MEDICAL SCHOOL
Graduation Year
1985
Is Sole Proprietor?
Yes
Enumeration Date
12-15-2006
Last Update Date
07-08-2007
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Specialty - Primary Taxonomy

The NPI enumerator requires providers to submit at least one taxonomy code. A taxonomy code is a unique 10-character code that describes the healthcare provider type, classification, and the area of specialization. There could be only one primary taxonomy code per NPI record. For individual NPIs the license data is associated to the taxonomy code.

Classification

Specialist

Taxonomy Code
174400000X
Type
Other Service Providers
License No.
MA049086
License State
NJ
Taxonomy Description
An individual educated and trained in an applied knowledge discipline used in the performance of work at a level requiring knowledge and skills beyond or apart from that provided by a general education or liberal arts degree.

Insurance Plans Accepted

According to publicly available information the provider might be accepting the following health plans from these health insurance companies:

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

*Please verify directly with this provider to make sure your insurance plan is currently accepted.

Additional Identifiers

The NPI Enumerator encourages providers to submit additional identifiers with their NPI application although the submission of this information is optional. The additional identifier(s) section includes other numbers or codes currently or formerly used as an identifier for the provider by other public healthcare entities. The identifiers may include UPIN, NSC, OSCAR, DEA, Medicaid State or PIN identification numbers.

Identifier Type / Code Identifier State Identifier Issuer
F25599MEDICARE UPIN (02)NJ 
LE719472MEDICARE ID-TYPE UNSPECIFIED (04)NJ 

Medicare Participation & PECOS Enrollment Status

Thomas Leach is registered with Medicare and accepts claims assignment, this means the provider accepts the approved amount for the cost of rendered services as full payment. Participating providers may not charge beneficiaries more than the approved amount for their services. Please keep in mind that beneficiaries still have to pay a coinsurance or copayment amount for a visit or service.

Thomas Leach is enrolled in PECOS and is eligible to order or refer health care services for Medicare patients. The provider is eligible to order or refer: Part B Clinical Laboratory and Imaging, Durable Medical Equipment (DME), a Home Health Agency (HHA) and Power Mobility Devices.

What is PECOS?
PECOS is the online Medicare enrollment management system or Provider, Enrollment, Chain and Ownership System. The PECOS system is a database of providers who have registered with CMS as providers or suppliers. PECOS is the primary source of information about verified Medicare professionals. Providers that want to participate in this program need to enroll in PECOS with their NPI number to avoid denied claims.

  • Is the provider registered in PECOS? Yes

  • PECOS PAC ID: 7618992314

    What is the PECOS Associate Control ID?
    A PAC ID is a unique 10-digit number assigned to an individual or organization healthcare provider in PECOS. The PAC ID is used to link together all the provider information, like tax identification numbers and organizational names. A PAC ID can be connected to multiple Enrollment IDs if an individual or organization has enrolled in PECOS more than once.

  • PECOS Enrollment ID: I20051012000175

    What is the Provider Enrollment ID?
    The Enrollment ID is a unique alphanumeric 15-digit code assigned to each new provider's PECOS enrollment application. The Enrollment ID is used to link together all the provider enrollment information like enrollment type, state, provider specialty, and reassignment of benefits.

  • Accepts Medicare Assignment? Yes

    What does it mean "accepts medicare assignment"?
    When a provider accepts Medicare assignment, the provider agrees to be paid directly by Medicare and to accept the payment amount approved by Medicare. Additionally, the provider agrees to not bill patients for more than the Medicare deductible and coinsurance amounts.
    A provider who doesn't accept assignment may charge you up to 15% over the Medicare-approved amount. This is known as the limiting charge. You may have to pay this amount, or it may be covered by another insurer.

  • Eligible to Order or Refer Part B Clinical Laboratory and Imaging: Yes

  • Eligible to Order or Refer Durable Medical Equipment (DMEPOS): Yes

  • Eligible to Order or Refer a Home Health Agency (HHA): Yes

  • Eligible to Order or Refer Power Mobility Devices: Yes

Areas of Expertise

The following services and procedures, recently provided to Medicare patients, illustrate the range of care this provider offers. This list reflects the variety of services available to all patients visiting the practice and is based on 2022 Medicare dataset. In general, the more frequently a provider treats specific conditions or performs particular procedures, the more experienced they become in addressing similar patient needs. The provider has delivered many of the services listed below to Medicare patients. Please note that this list does not include services provided to patients who are not covered by Medicare.

Established patient office or other outpatient visit, 20-29 minutes

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

This service was performed 28 times for 21 patients

Mastectomy

A mastectomy is a surgical procedure that involves the removal of all or part of the breast tissue. This is often done to treat or prevent conditions related to abnormal cell growth. There are different types, ranging from removing only the breast tissue to also removing nearby structures. The approach depends on individual health circumstances.

This service was performed for 1-10 patients

Melanoma (skin cancer) excision

Melanoma excision is a procedure where a surgeon removes melanoma, a type of skin cancer, and some surrounding healthy tissue. Local anesthesia is applied to numb the area. The goal is to completely remove the cancer and prevent its spread. Healing time varies.

This service was performed for 122 patients

New patient office or other outpatient visit, 15-29 minutes

This service involves an initial visit to the doctor's office or other outpatient setting. It typically lasts between 15-29 minutes. The doctor will review your medical history, conduct a physical examination, and discuss your health concerns. It's a chance to establish your health baseline and address any immediate medical issues.

This service was performed 66 times for 66 patients

New patient office or other outpatient visit, 30-44 minutes

This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.

This service was performed 39 times for 39 patients

Repair of wound of eyelids, nose, ears, or lips by transferring skin, 10.0 sq cm or less

This procedure involves repairing a wound on the eyelids, nose, ears, or lips by moving a small piece of skin (10.0 sq cm or less) from one area to another. The goal is to heal the wound and restore the function and appearance of the affected area.

This service was performed 21 times for 20 patients

Repair of wound of eyelids, nose, ears, or lips by transferring skin, 10.1-30.0 sq cm

This procedure involves repairing a wound on the eyelids, nose, ears, or lips by transferring skin from another part of the body. The size of the skin transferred will be between 10.1 to 30.0 square centimeters. It is performed to restore function and appearance.

This service was performed 33 times for 32 patients

Reviews for MR. THOMAS ALLEN LEACH M.D.

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NPI NPI Number Validation

How NPI Validation Works

The NPI validation process uses the ISO-standard Luhn algorithm, a mathematical "handshake", to ensure that a provider's 10-digit ID is authentic and free of common typing errors.

To verify the NPI 1114089141, we treat the final digit (1) as the Check Digit—the target answer we need to reach. The process begins by taking the first nine digits and adding a constant value of 24, which accounts for the "80840" prefix required for all U.S. health identifiers. We then double every other digit starting from the right and sum the individual digits of those results together. For this specific NPI, that total comes to 59. The final step is to find the difference between that total and the next multiple of ten (60 - 59 = 1).

Digit-by-digit view

Use the first nine digits for the calculation. Starting from the right, double every other digit. The last digit is the check digit and is not part of the calculation.

Pos 1
1
Doubled → 2
Pos 2
1
Unchanged
Pos 3
1
Doubled → 2
Pos 4
4
Unchanged
Pos 5
0
Doubled → 0
Pos 6
8
Unchanged
Pos 7
9
Doubled → 18 → 1 + 8
Pos 8
1
Unchanged
Pos 9
4
Doubled → 8
Check
1
Target digit
Regular digit Doubled digit Check digit

Step 1: Double every other digit from the right

Starting with the rightmost digit of the first nine digits, double every other value. If doubling creates a two-digit number, add those digits together.

1 → 2 1 → 2 0 → 0 9 → 18 → 9 4 → 8

Step 2: Add all digits plus the NPI constant

Add the transformed values, the unchanged digits, and the constant 24.

2 + 1 + 2 + 4 + 0 + 8 + 1 + 8 + 1 + 8 + 24 = 59

Step 3: Find the amount needed to reach the next multiple of 10

The next multiple of ten after 59 is 60. The difference is the calculated check digit.

60 - 59 = 1
This NPI is valid
The calculated check digit is 1, which matches the last digit of 1114089141.

Other Providers at the Same Location


The following 10 providers are registered at the same or a nearby location.

Plastic Surgery
932 STATE RD
PRINCETON, NJ 08540
Internal Medicine (Gastroenterology)
932 STATE RD, 2ND FLOOR
PRINCETON, NJ 08540
Clinic/Center (Ambulatory Surgical)
932 STATE RD, STE H
PRINCETON, NJ 08540
Counselor (Professional)
932 STATE RD
PRINCETON, NJ 08540
Counselor (Mental Health)
932 STATE RD
PRINCETON, NJ 08540
Clinic/Center (Mental Health (Including Community Mental Health Center))
932 STATE RD
PRINCETON, NJ 08540
Clinic/Center (Mental Health (Including Community Mental Health Center))
932 STATE RD
PRINCETON, NJ 08540
Counselor (Professional)
932 STATE RD
PRINCETON, NJ 08540
Counselor (Mental Health)
932 STATE RD
PRINCETON, NJ 08540
Social Worker (Clinical)
932 STATE RD
PRINCETON, NJ 08540

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1114089141, enumerated as an "individual" on December 15, 2006.

The provider is located at 932 STATE RD PRINCETON, NJ 08540 and the phone number is (609) 921-7161.

Specialist with taxonomy code 174400000X.

The provider might be accepting Accepts: Medicare and Medicaid. Please consult your insurance carrier or call the provider to verify.